CVE-2018-8836

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Specially crafted packets may also be sent to Port 2455/TCP/IP, used in Codesys management software, which may result in a denial-of-service condition of communications with commissioning and service tools."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-404", "description": "IMPROPER RESOURCE SHUTDOWN OR RELEASE CWE-404", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2018-04-12T09:57:02.000Z", "orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert"}, "references": [{"name": "103726", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/103726"}, {"tags": ["x_refsource_MISC"], "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-088-01"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.wago.com/medias/Vulnerability-in-the-WAGO-Ethernet-TCP-IP-driver.pdf?context=bWFzdGVyfHJvb3R8MjgxNDk0fGFwcGxpY2F0aW9uL3BkZnxoOTcvaDhkLzkxNTAyMjMyMjA3NjYucGRmfGRlNWQ4ODc0NTE5M2UyNTUwNTIyNDRlOWFkNWI2YjNkMzg0YTVhYzlmYTBjNzM4MDdmNmYzOTM5M2ZlMGEzNzE"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "ics-cert@hq.dhs.gov", "DATE_PUBLIC": "2018-03-15T00:00:00", "ID": "CVE-2018-8836", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "WAGO 750 Series", "version": {"version_data": [{"version_value": "750-880 firmware version 10 and prior"}, {"version_value": "750-881 firmware version 10 and prior"}, {"version_value": "750-852 firmware version 10 and prior"}, {"version_value": "750-882 firmware version 10 and prior"}, {"version_value": "750-885 firmware version 10 and prior"}, {"version_value": "750-831 firmware version 10 and prior"}, {"version_value": "750-889 firmware version 10 and prior"}, {"version_value": "750-829 firmware version 10 and prior"}]}}]}, "vendor_name": "WAGO"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Wago 750 Series PLCs with firmware version 10 and prior include a remote attack may take advantage of an improper implementation of the 3 way handshake during a TCP connection affecting the communications with commission and service tools. 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Specially crafted packets may also be sent to Port 2455/TCP/IP, used in Codesys management software, which may result in a denial-of-service condition of communications with commissioning and service tools."}, {"lang": "es", "value": "Los PLC Wago 750 Series, con versiones de firmware 10 y anteriores, incluyen un ataque remoto que podr\u00eda aprovecharse de una implementaci\u00f3n incorrecta de la negociaci\u00f3n a tres bandas durante una conexi\u00f3n TCP, lo que afecta a las comunicaciones con las herramientas de comisi\u00f3n y servicio. Los paquetes especialmente manipulados tambi\u00e9n podr\u00edan enviarse al puerto 2455/TCP/IP, empleado en el software de gesti\u00f3n Codesys, lo que podr\u00eda resultar en una condici\u00f3n de denegaci\u00f3n de servicio de las comunicaciones con las herramientas de comisi\u00f3n y servicio."}], "id": "CVE-2018-8836", "lastModified": "2026-06-17T02:05:28.843", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-04-03T13:29:00.277", "references": [{"source": "ics-cert@hq.dhs.gov", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/103726"}, {"source": "ics-cert@hq.dhs.gov", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-088-01"}, {"source": "ics-cert@hq.dhs.gov", "tags": ["Vendor Advisory"], "url": "https://www.wago.com/medias/Vulnerability-in-the-WAGO-Ethernet-TCP-IP-driver.pdf?context=bWFzdGVyfHJvb3R8MjgxNDk0fGFwcGxpY2F0aW9uL3BkZnxoOTcvaDhkLzkxNTAyMjMyMjA3NjYucGRmfGRlNWQ4ODc0NTE5M2UyNTUwNTIyNDRlOWFkNWI2YjNkMzg0YTVhYzlmYTBjNzM4MDdmNmYzOTM5M2ZlMGEzNzE"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/103726"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-088-01"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.wago.com/medias/Vulnerability-in-the-WAGO-Ethernet-TCP-IP-driver.pdf?context=bWFzdGVyfHJvb3R8MjgxNDk0fGFwcGxpY2F0aW9uL3BkZnxoOTcvaDhkLzkxNTAyMjMyMjA3NjYucGRmfGRlNWQ4ODc0NTE5M2UyNTUwNTIyNDRlOWFkNWI2YjNkMzg0YTVhYzlmYTBjNzM4MDdmNmYzOTM5M2ZlMGEzNzE"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-404"}], "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-404"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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